atomic number 80
Also found in: Thesaurus.
Switch to new thesaurus
|Noun||1.||atomic number 80 - a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures|
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
cinnabar - a heavy reddish mineral consisting of mercuric sulfide; the chief source of mercury